Merge pull request #3289 from tnull/2024-09-fix-rgs-bp-builds

Fix builds of `lightning-rapid-gossip-sync` and `lightning-background-processor` crates

diff --cc lightning/src/ln/channelmanager.rs
Simple merge

diff --cc lightning/src/ln/outbound_payment.rs
Simple merge

diff --cc lightning/src/offers/invoice_macros.rs
Simple merge

diff --cc lightning/src/offers/invoice_request.rs
Simple merge

diff --cc lightning/src/offers/offer.rs
Simple merge

diff --cc lightning/src/offers/parse.rs
Simple merge

diff --cc lightning/src/offers/refund.rs
Simple merge